Table-Top Laser-Based Source of Femtosecond, Collimated, Ultrarelativistic Positron Beams
2013 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 110, no 25, 255002-1-255002-5 p.Article in journal (Refereed) Published
The generation of ultrarelativistic positron beams with short duration (τe+≃30 fs), small divergence (θe+≃3 mrad), and high density (ne+≃1014–1015 cm-3) from a fully optical setup is reported. The detected positron beam propagates with a high-density electron beam and γ rays of similar spectral shape and peak energy, thus closely resembling the structure of an astrophysical leptonic jet. It is envisaged that this experimental evidence, besides the intrinsic relevance to laser-driven particle acceleration, may open the pathway for the small-scale study of astrophysical leptonic jets in the laboratory.
Place, publisher, year, edition, pages
American Physical Society , 2013. Vol. 110, no 25, 255002-1-255002-5 p.
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:liu:diva-94300DOI: 10.1103/PhysRevLett.110.255002OAI: oai:DiVA.org:liu-94300DiVA: diva2:631583
FunderSwedish Research Council, 2010-4063